การตรวจหาแบคทีเรียปนเปื้อนจากแหล่งน้ำในเขตเมือง และรอบมหาวิทยาลัยนเรศวร จ. พิษณุโลก

The Examination of contaminated bacterial in Water Sources of Muang and Around Naresuan University, Phitsanulok Province

Abstract

Muang and around Naresuan University are the area of high population which are rapidly expand of economy development and
causing the high amount of water usage for daily life and industry. The main following problem is destroying water sources which this
effect can feed back to the people in that area. Therefore this study aim to survey the water bacteria and search for the pathogenic
bacteria in water sources which can cause of water borne disease at Muang and around Naresuan University. Water bacteria
contamination was determined and collected from 14 water sources in Muang community and around Naresuan University, Pitsanulok
Province. Multiple-tube fermentation technique, a standard technique was used for total coliforms study. Seven samples were lower
standard which collected form Nan River (Night braza, Houseboat), slaughter-house canal, Koakchang canal, canal beside Naresuan
hospital, life museum canal and drained water canal of Naresuan University. The results showed that several bacterial strains and the
high amount of coliform bacteria were found in all water sources. The highest colony number was found in Koakchang canal which
all are Escherichia coli. Moreover, the pathogenic and non-pathogenic bacteria, Shigella dysenteriae, Citrobacter freundii, Proteus mirabilis Coagulase-negative staphylococcus, Entercoccus spp., Acinetobacter spp., Aeromonas spp. were most commonly found in
this study.
Our findings suggested that there is need to do surveillance for waterborne disease and prevent their spread to people in community
such as educated the people to save river and community.